Modeling of Wear in a Solid-Lubricated Ball Bearing

Gupta, Pradeep K.; Forster, Nelson H.

doi:10.1080/05698198708981730

Cited by 24 publications

(18 citation statements)

References 7 publications

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“…Interestingly, the adjusted value is very much closer to the value of wear coefficient empirically derived from the tribological tests explained in section 3.2. This value also agrees with the value assumed in [14]. In this way, model training, data validation and validation of the simulation results has been carried out.…”

Section: Validation Of the Resultssupporting

confidence: 85%

“…He has confirmed the wear loss of cage is more substantial than that of the other bearing metal parts, and this loss of cage material cause the cage imbalance. Gupta [14] proposed an analytical model for wear in solid lubricated rolling bearings for high-speed turbine applications. Although, the determination of wear data and its validation was not presented.…”

Section: State Of the Researchmentioning

confidence: 99%

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Modeling and Simulation of Cage Wear in Solid-Lubricated Rolling Bearings

2020

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Cage not only separates the rolling elements but play an essential role of lubricant supplier in solid lubricated rolling bearings, thereby lubricating the rolling contacts. In such bearings, whose service life can be significantly extended by targeted cage wear, a better understanding and a reliable prediction of the wear is necessary in order to achieve a further increase in the service life. In order to predict wear and eventually their life-time is a complex phenomenon as it involves several transfer processes taking place in the rolling and sliding contacts. The lifespan of such bearings can be determined by performing numerous lifetime experiments. Global lifetime model for solid-lubricated rolling bearings does not exist so far like a conventional bearing life model. Therefore, a dynamic simulation strategy based on Adams multibody simulation environment to predict and model wear at cage pocket interface have been proposed. An incremental wear simulation approach based on Fleischer wear law is introduced. Uniform global wear of the cage pocket depending on the recalculation of cage geometry and converted frictional energy for each wear increment is calculated. Simulation results show good accordance with the experimental results. The importance and suitability of such a wear simulation approach will be enunciated in this paper.

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Section: Validation Of the Resultssupporting

confidence: 85%

Section: State Of the Researchmentioning

confidence: 99%

Modeling and Simulation of Cage Wear in Solid-Lubricated Rolling Bearings

2020

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“…According to the dynamic modeling methods of rolling bearings in the book by Gupta (1984) and reference (Gupta, 1987), a dynamic wear simulation model of the inner ring or outer ring mass center fixed of gyro rotor ball bearings was built up. It is assumed that the mass centers of bearing components coincide with their geometric centers, balls and the cage have six degrees of freedom.…”

Section: High-speed Rotor Bearing Dynamic Modelmentioning

confidence: 99%

“…Friction heating and wear in the contact areas are unavoidable. The Archard adhesive wear theory can be used to calculate the wear rate of bearing parts (Gupta, 1987).…”

Section: Calculation Of Time-averaged Wear Rate Of Bearing Partsmentioning

confidence: 99%

Wear performance analysis of high-speed instrument rotor bearings

Zhang

Chen

Gu³

et al. 2018

JAMDSM

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For inner ring or outer ring rotation of high-speed rotor ball bearings, a dynamic wear simulation model of angular contact ball bearings was built up. Taking one type of instrument rotor bearing as an example, the influence of different ring rotation and rotating radial load on the dynamic performance and wear rate of bearing parts were analyzed. Results show that under the same ring speed condition, the angular and orbital velocity of the balls are higher when the outer ring rotates; the difference of the contact angles between the ball and the inner and outer races is also increased which result in an increase in the spin-to-roll ratio, and the time-averaged wear rate of the ball is increased by 31.30%. Compared with the pure thrust load condition, the track radius and the axial swing amplitude of the cage mass center whirl are increased under the combined thrust and rotating radial load. When the ratio of the radial to thrust load is 1, the wear rates of bearing parts are obviously increased. The results provide some guidance for the optimization design and application of high-speed instrument rotor bearings.

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“…On the base of those models, the gyroscopic moment model is established to analyze the pitching angles and yaw angles, and the cage forces and operating condition are studied by the contacting force models between the cage and the ball and guide ring. The results of the improved quasi-dynamic model are furthermore compared with the results of the typical rolling bearing force calculation example of Gupta [15]. Studies show that the model is able to accurately describe the dynamic variations of the parameter characteristics of spindle bearings.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Parameter Analysis of Spindle Bearing Using 3‐Dimension Quasi‐Dynamic Model

Chen

et al. 2019

Mathematical Problems in Engineering

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Spindle bearing with high rotational speed is the kernel of many rotating machines which plays massive important role in the performance of the whole machine. There are also some deficiencies of the present quasi-dynamic mathematical models of the rolling bearing in analyzing the bearing dynamic parameters. This paper develops the 3D quasi-dynamic model with ball’s 6-DOF, cage’s 6-DOF, and driving ring’s 5-DOF under steady working stage, based on the analysis of the relative position of each component to determine the normal forces between each component and the analysis of the relative velocity of the contacting point to determine the tangential force between each component. This model can analyze the dynamic parameters, such as the spin-to-roll ratio of inner and outer rings, the angular velocity of rolling elements in y-axis of the location coordinate, the normal contact force of cage pocket and ball, the cage angular velocity and ball revolution velocity, and the gyroscopic moment under different working condition. Compared with the numerical calculation results of ADORE program, the results of the proposed model are able to accurately describe the change laws of the spindle bearing parameters.

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Modeling of Wear in a Solid-Lubricated Ball Bearing

Cited by 24 publications

References 7 publications

Modeling and Simulation of Cage Wear in Solid-Lubricated Rolling Bearings

Modeling and Simulation of Cage Wear in Solid-Lubricated Rolling Bearings

Wear performance analysis of high-speed instrument rotor bearings

Dynamic Parameter Analysis of Spindle Bearing Using 3‐Dimension Quasi‐Dynamic Model

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